198344-33-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 198344-33-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,9,8,3,4 and 4 respectively; the second part has 2 digits, 3 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 198344-33:
(8*1)+(7*9)+(6*8)+(5*3)+(4*4)+(3*4)+(2*3)+(1*3)=171
171 % 10 = 1
So 198344-33-1 is a valid CAS Registry Number.